Trap



H. W. IUSTUS.

TRAP.

APPLICATION FILED MAR. |51 1920. s 1,380,971 Patented June 7, 1921.

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TRAP.

APPLICATION FILED MAR.15, 1920. 1,380,97L Patentedlune 7, 19,21.

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Specification of Letters Patent. i Patgnijed Jun@ 7, 1921,

Application filed March 15, 1920. Serial VNo; 365,983.

and State of lew York, have invented a new and Improved Tra-p, of which the ollowing is a full, clear, and exact description.

This invention relates lto improvements in traps, and more particularly to traps for water of condensation, an object of the inf vent-ion being to provide an improved construction of trap automatically controlled by a neat in the trap and ladapted -to Jorce the water to a tank at a higher elevation o return the same to the-boiler. A further object 1s to provide Aan improved arrangement of diaphragm and means operated thereby for controlling the`v flow of water from the tra-p through the medium of live steam admitted to the trap to exert a pressure on the water, the operationV of said diaphragm being controlled by the position of a lioat in the trap.

invention consists in certa-in novel features of construction, and combinations and arrangements of parts as will Vbe more fully hereinafter described and pointedout in the claims. 1

In the accompanying dra.\vings- Figure 1 is a view mainly in longitudinal section, but partly in elevation illustrating my invention; Y

Fig. 2 is a view in horizontal section through the valves controlling the passage of steam to the diaphragm chamber' and also illustrating adjacent parts, both valves be` ing shown in section, but it isto be understood that they are at slightly different elevations;

Fig. 3 is a fragmentary view in section'V through the rocker shaft 47 and adjacent parts; and v Figs. 4 and 5 are views in vertical section and top plan illustrating a modification.

1 represents the casing of my improved trap having awater inlet 2 extending to a point adjacent the bottom or the trap and having a check valve 3 permitting al iow in one direction only. et represents a'water outlet pipe which ralso extends to a point near the bottom 5 of the trap and alsoV projects through the top 6 of the trap so as to convey the water upwardly toa suitableV tank or return the same to the boiler.

A valve casing 7 is located between the ends of the pipe 4 and is'supported on' the top 6. An upwardly spring pressed check valve 8 is provided in the valve casing 7 and is normally held in closed position against a seat 9. 10 represents an' outlet pipe 'lor steam andv vapor which vcommunicates with the chamber throughgthe top thereof and is provided with a valve cas-v ing 11 having an upwardly spring vpressed check valve `12 whichl is normally open, but` which, when closed, engages seat 1?.inV

the casing 11.

p 15 represents a steam pipewhichis ed to convey live steam to the upper kportion of thetrap and this pipe 15 is provided lbetween its Yends with .a valve casing Y 16 supported on the top 6 ofthe trap .and hav-V mally engaging a seat 18 so'asto normally shut `ofi the supply of'steam to the trap. .Y

A pair of posts 19 and 2O are supported on the top 6. A normallyfhorizontal lever With these and other objects in view the 21 is Vpivotally mounted onV the post 20 as ino' aspring pressed valve 17 therein nor! shown at 22,and this pivot point is nearer Y one end of the vlever than the other. The shorter end 23 of vthe lever 21 is connected by a coiled spring 24 with a bracket 25 on the post 19 normally holding the leverV against the top of thepostV which is, there'- fore, the normal position or" the lever.

The valves12, 17 yand 8 are' provided with upwardly/projecting valve stems 26,27 and 28 respectively. The valve stem 26 engages the under face of the shorterend 23 of the lever-21 so that the valve 12 is normally held by the Vlever in "open position. The

, upper end of the stem 27 is normally slightly spaced from the lower face oi the lever 21 vso that the 'valve 17is maintained normally in closed position.Y The upper end of the stem 28 is located directly under and may be in contact with the lower face of the longer end of the lever, but it is Vto be understood that the valver8V operated by the stem 28 is also normally closed.

V29 represents a diaphragm casing having a diaphragmvO- therein and a plunger 31 connected to the under face of the diaphragm and engaging the upper faceoiC the longer end of lever 21. A spring 32 is providedinfthe casing'29 and assists in maintaining the ldiaphragm in normal position. A steam pipe 33 at its .outlet end communicates with the upper portion of kdiaphragm casing'29 and this pipe 33 at rits inlet end vided with a stemV Ll?) projecting through a i the xstem 3S oi valve Sfand said rocker` stufling box le in the end of the pipe Ll0 represents a supply pipe which also n projects through the plate 34 and is providedvvith a spring presed check valve 36 adapted to engage a seat 37 and provided with; a stem 3 8 projecting,` through a stuffing box 39 on the end :of the pipe e0. A `bybeyond the valve 41 vvith thepipe 33 at a point in advanceot the valve 36. A pipe l5 communicates withv theygpipeli() and eX- hausts into the atmosphere.

upper faceyvith a lug 48 adapted to engage shai'tisprovided on its lovveriace .With a lugl #i9 adapted to normally engage the stem Ll-lot valve 4:1. A rod 5() is `fixed at one end to the rocker shaft il?. and at its free end car-f i ries a loat 51 which is raised and lovvered by the level of Water in the tank.

Figs. land 2 illustrate the parts in normal position withA the Water accumulating.

stem 43 to permit the valve 4:1 to close and will, through the medium ot the lug 48,

Vmove the stem `3S to open the valve '36, thus allowing the live steam from thepipe 40 to flow through the by-pass pipe 52 into pipe` and as thesvalve Bois opened, the steam will tloiv through the `pipe 33 into the upper The portion of the diaphragmcasing 29. j steam inthe casing 29 will `exert a down- Ward pressure on thediaphragm 30 andthe plunger 31 to movethe longer end of the leverr21 downwardly. This movement of. the lever 21 will open the valveS in the Water outlet pipe l and permit the equalizer valve 12 to close. As the longer end ofthe lever 21 continues to move downwardly, it

. Will, throughthe medium ot' the stem 27,

open the steam inlet valvell' and allow the live steam to enter the upper portion of the casing 1 `and force the Water through the outlet pipe 4: to a tank above the trap or back to the boilerfas may be desired.

As the Water escapes, the fiioat 51 will As the 4level When the Water reaches lovver in the trap and will, through the dium of theroclrer shaft 47, cause thevalve to close shutting oit the steam to the diaphragm casing and opening the valve d1 to allow the steam to exhaust tothe atin0spliere through the pipe 45. l/Vhen the pres sure of steam is cut oft, the spring 24C Will return the lever 21 to normal position permitting the spring pressed valves to returnV to their Vnormal positions as `shown in Fig.

15 with the valve i7 shutting oil the supply of live steam,v the valve 8 closing the Water outlet pipe and the valve 12 opening the pip-e l() to allow the escape of steam and vapor in the trap so 'as netto interfere with Y the operation thereof.

pass pipe52 connects the pipe `4 0 at a point In themoditication illustrated in F ig. et, show an outlet valve controlling the i'lovv of Water Vor steamto the diaphragm casing which may be substituted for the .form above illustrated and described. With' this form Vof my inventionfl provide a sliding valve 53 operated'by a pivotally supported` arm' 54E having a rod 55 secured thereto and carryingatloat 5G at its free end.V The ilow upwardly through the pipe 'lis controlled by the valve 53 and it is to ybe understood that this pipe 57 will communicate with theV upper portion of the diaphragnrcasing 29.

A drain pipe 5 8 communicates With the pipe 5T and is provided with a needle valve 59 connected by a stem o2 with the valve to allow the Water or steam in pipe 57 to drain' When the valve is'closed. lll/ith this form of my invention l preferablyprovidescreens 60 over the inletl so as to .preventtoreign matter from entering the valve chamber and the pipes. r A.

I would have it understood that my improved trap is capable or' a Wide range ol utility andmay be used in connection with various apparatus, as -for example, as an automatic pump contiol,'automati.c boiler feed, or in any other place Where a powerful and reliable automaticl valvei control is desired. l Y

Various other slight changes might be made in the general form and arrangement oi parts described without departing from the invention, and hence l do not limit myself to the precise details set forth, but consider myself at liberty to malte such changes and alterations as fairly fall Within the spirit and scope of the appended claims.

I claim: i Y j 1. Al trapi oi the character statedjcomp rising a casing, a Water inlet pipei discharging into the casing, a cheek valve in said pipe, a Water outlet pipe having its cn trance end located adjacent the bottom ot' the casing and extending-through the 'top of the casing, a valve normally vclosing the passage through said outlet pipe, a steam inlet pipe communicating vvith the casing a normally closed valve 1n said steaminlet located adjacent-the bottom of the casing into the casing, a 'check valve in said pipe, a

water outlet pipe having its entrance end and extending through the top of the-casing, a valve normally closing the passage through said outlet pipe,'a steam inlet pipe communicating with the casing, a normally closed valve in said steam inlet pipe, a dia-v phragm casing,a diaphragm in said casing, means operatively connecting said diaphragm with the valves in the outlet pipe and the steam inlet pipe, means controlling the flow of fluid to the diaphragm chamber, a. iloat valve in the casing controlling the operation of said last-mentioned means, a pressure equalizing outlet pipe in the top of the casing, a normally open valve in said equalizer outlet pipe, and said last-mentioned valve permitted'to close prior to the opening ot' the steam inlet valve. y

3. A trap of the character described, comprising a casing, a water inlet pipe discharging into the casing, a water outlet pipe extending through the top of the casing, a normally closed spring pressed valve in said outlet pipe, a steam inlet pipe communicating with the top of the casing, a normally closed vspring pressed valve in said steam inlet pipe, an equalizer outlet pipe communieating with the top of the casing, a normally open spring pressed valve in said equalizer pipe, a lever pivotally supported between its ends and at one end normally holding the last-mentioned valve open, a diaphragm casing, a diaphragm in the casing, means connected to the diaphragm and engaging the lever, wherebyr the downward movement of the Vdiaphragm operates to open the valves inV the water outlet pipe and the steam inlet pipe andhpeimit the closing` ot' the valve in the equalizer pipe, and float operating means controlling the flow of fluid to the diaphragm casing. y p

et. trap o'j the character described, comprising a casing, a water inlet pipe discharging into the casing, a water outlet pipe extending thr ugh the top ot the casing, a normally closed spring pressed valve in said outlet pipe, a steam inletpipe communicating with the top of the casing', a normally closed spring pressed valve in said steamV inlet pipe` an equalizer outlet pipe communieating with the top orp the casing, a normally open spring pressed valve in said equalizerV pipe, a lever pivotally supported between its ends and .at one end normally holding the last-mentioned valve open, a diaphragm cas ing, ar diaphragm in the casing, means connected to the diaphragm and engaging the lever, whereby the downward movement ot the diaphragm operates to open the valves in the water outlet pipe and the steam inlet pipe and permit the closing of the Valve in theequalizer pipe, a steam pipe communicating with the top ot' the diaphragmV casing, and a float valve in the Vcasing controlling the flow of steam to the diaphragm casing 5; A. trap of the character described, comprising a casing, a water inlet pipe discharg-- ing into the casing, water outlet pipe ex-V tending through the top of the casing,

normally closed spring pressed valve'in said l outlet pipe, a steam inlet pipe communicating with the top of thecasing, anormally vclosed spring pressed valvein said steam inlet pipe, an equalizer outlet pipe communi.- catingwith the top of the casing, a normally open spring pressed valve in said equalizer ,Y i pipe, a lever pivotally supported betweenV 5 its ends and at one' end normallyrholding the last-mentioned valve open, a diaphragm casing, a diaphragmV inV the casing, means connected to the Vdiaphragm and engaging the lever, whereby thedownward movement ot' the diaphragm operatesv to open tlie'valves in the water outlet pipe and the steam inlet pipe and permit the closingot the valve Y in the equalizer pipe,float operating meansY controlling the flow of fluid to the diaphragm casing, andra spring holding the lever in normal position. y A Y Y 6. Altrap of the character described, comprising a casing, a valved water inlet pipe discharging into the casing, a water outlet pipe communicating with the bottom ofthe casing and extended through the top of the casing, a steam inlet pipe communicating with the top orp Vthe casing, a normally closed valve in said steam inlet pipe, a lever oper-V atively connected toboth of'said last-mentioned valves, a diaphragm casing, a diaphragm in the casing, means on vthe diay iio` phragm engaging the lever, arsteam pipe extending from the interior of the trap cas-Y ing to the top of the diaphragm casing, a steaminlet pipe projecting intothe trap casing, a by-pass pipe connecting the last-mentioned pipes, valves in said last-mentioned.

pipes, a Vsteamreturn pipe communicating with theV last-mentioned steam inlet pipe,

and a float operatively connected'to and con-V trolling said last-mentioned valves.

7 A trap et the'cliaracter described, comprising a casing, a valvedV water inlet pipe discharging into .the casing, a water'outlet pipe communicating withk the bottom Vot the casing and extended throughthe top of the casing, a steam inletpipeV communicating Ywith the top otV the casing, a normally closed'l valve in said steam inlet pipe, a lever opera- CIV tively connected `to both of said last-mentioned yalves,ra diaphragm easing, a diaphragm `in the easing, means `lon the diaphragm engaging the lever, a steam pipe eX- tending `from the interior of the trap easing to the top oi the diaphragm casing, a steam inletpipe `projecting into the trap casing, a by-pass .pipe connecting the Alast-mentioned pipes, Valves in said last-mentioned pipes, a steam `:return pipe communicating With the lastmentioned steam inlet pipe, a rocher shalt mounted in the easing, lugs onV the rocker shaft Constructedto operate the Vtwo lastnlentioned Valves, ia rod on the rocker shaft,` and a float on'the free end of the rod. i

Y inlet pipe extending into the easing, a Water;

outlet pipe extending through the top of the Snel. trap, comprising a casing, a Water `mounted between itsv ends on one of said posts, a spring normally holding said lever against the other of said posts, stems operativelyeonnected 'to the Valves of the Water outlet pipe,` the steam inlet pipel and the eqnalizing pipe, said stems located under the lever and operated thereby, a diaphragm cas ing, a diaphrawmin the easing,.a device secured tothe diaphragm and engaging one end of the lever, `a float inthe easing, and means operated bythe float controlling the flotY of fluid to the diaphragm casing. p nENRY W. JUsTUs. 

